JPS6382823A - Drain structure of fuel cap adapter for automobile - Google Patents

Abstract

PURPOSE:To enable reduction of the length of a discharge passage in a car body to a minimum value, by a method wherein a discharge port for leak fuel is formed in a fuel cap adapter, and the discharge route thereof is extended to the inner side of a bumper outside of a car body. CONSTITUTION:An upper end part 5a of a fuel filler pipe 5 through which to guide fuel to a fuel tank is secured to a bottom part 7a of a recessed fuel cap adapter 7, and its opening is closed with a cap 6. A discharge hole 7c is formed on the rear side of the car body of a lower part 7b of the fuel cap adapter 7, and a drain pipe 8 is welded, in an extending-downward manner, to the discharge hole 7c.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a drain structure for a fuel cap adapter for an automobile.

(Prior art) The fuel inlet of an automobile is provided on the side of the car body, etc., but in order to improve its appearance etc., a recess is provided in the outer panel of the car body.
A fuel inlet is disposed within the recess, and the recess is covered by a lid that is flush with the outer panel.

When refueling a car through this fuel injection port, leakage fuel inevitably occurs around the injection port, so the structure around the fuel injection port is as shown in Japanese Utility Model Application No. 55-37739. The recess is also provided with a drain pipe for discharging leaked fuel to the outside of the vehicle body.

To explain what is shown in the above-mentioned Japanese Utility Model Publication No. 55-37739 with reference to FIG. 6, a concave fuel cap adapter (101) protruding inward of the vehicle body is provided in a notch in the outer panel (100) of the vehicle body. installed, and its opening has a lift page 1
02) is provided. Inside the fuel cap adapter (101) is a fuel filler pipe (103).
An opening (103a) is provided, and the opening (103a) is
103a) At the bottom is a fuel + adapter (101
) with the nozzle (104a) passing through the lower side of the drain receptacle (
104) is provided. The nozzle (104) of the drain receiver (104) below the fuel cap adapter (tol)
A drain pipe (105) is connected to a), and the drain pipe (105) extends through the inner plate (10B) of the vehicle body to the outside of the vehicle body, and extends around the opening (103a) of the fuel filler pipe (LA3). Drain the leaked fuel (10
4) so that it can be discharged from the vehicle body.

(Problems to be Solved by the Invention) In the above conventional technology, the drain pipe (TO5) needs to penetrate the inner plate (10B) of the vehicle body and extend to the outside of the vehicle body, so it has to be long. In addition, the weight of the drain pipe (LA5) increases, and the drain pipe (LA5) tends to become clogged, and its cleaning is also difficult. Also drain pipe (105)
Considering its structure, the assembly of the inner and outer panels (100), (
10B) There was also a problem with the workability of assembling the drain pipe because it had to be done in a narrow space after assembly.

The present invention has been made to solve the above-mentioned problems, and its purpose is to shorten the discharge path for leaked fuel from the fuel cap adapter to the outside of the vehicle as much as possible, and to facilitate its installation. The purpose of the present invention is to provide a drain structure for an automobile fuel cap adapter.

(Means for Solving the Problems) A means for solving the above problems is to attach a concave fuel cap adapter to the notch in the outer panel of the vehicle body, cover the fuel cap adapter with a lid that can be opened and closed, and In an automobile in which an opening for a fuel filler pipe is disposed inside the fuel cap adapter, the fuel cap adapter is provided with a discharge port for the fuel leaked when fuel is injected into the fuel filler pipe, and the fuel cap adapter is provided with a discharge port for the fuel discharged from the discharge port. Therefore, the part exposed to the outside of the vehicle was covered with a bumper.

(Function) Since the fuel cap adapter is provided with a discharge port for leaked fuel, and the discharge path from the discharge port reaches inside the bumper on the outside of the vehicle body, the discharge path within the vehicle body can be made the shortest, and Since the exposed part of the exhaust route outside the vehicle is hidden by the bumper of the vehicle body, the appearance of the vehicle body is not impaired.

Depending on the structure of the vehicle body outer panel and the 7-fuel cap adapter, the leaking fuel may not necessarily require structures such as pipes, but may simply drip from the fuel cap adapter's exhaust port. In this case, this fuel dripping etc. will be hidden from the outside by the bumper.

(Embodiment) Next, a preferred embodiment of the present invention will be described in detail with reference to the attached FIGS. 1 to 3.

FIG. 1 is a diagram showing the rear part of an automobile to which the present invention is applied, and a rear bumper (3) is attached to the rear lower part of the vehicle body surrounded by an outer panel (1) from the rear surface to the side surface of the vehicle body. The outer panel (3) above the side railing (3) of the vehicle body
1) is provided with a fuel filler lid (0) that can be freely opened and closed in order to supply fuel to the upper end (5a) of a fuel filler pipe (5) for fuel supply arranged inside the vehicle body. There is.

The upper end portion (5a) of the fuel filler pipe (5) will be described below with reference to FIGS. 2 to 4. In FIG. 2, a bent part (la) in which a substantially rectangular hole is formed is provided in the outer plate (1) extending from the upper part to the lower part,
A concave fuel cap adapter (7), on which the upper end (5a) of the fuel filler pipe (5) is disposed, is welded to the inside of the vehicle body of the bent portion (1a). The opening of the fuel cap adapter (7) is located on the outer plate (1).
The above-mentioned Tsuyuel filler lid (4) provided flush with the
It can be opened and closed freely by the twill filler lid (
4) Lower outer plate (1) The lower part has a bent part (1b) extending inward.
) and a flange portion (IC) extending downward from the flange portion (IC), and at the flange portion (1c), the outer panel (1) is joined to a lower outer panel (2) made of a separate member.

Now, the upper end (5a) of the fuel filler pipe (5) that guides fuel to a fuel tank (not shown) is fixed to the bottom (7a) of the concave fuel cap adapter (7), and the opening thereof is fixed to the bottom (7a) of the fuel cap adapter (7). ) is blocked by

and the lower part (7b) of the fuel cap adapter (7).
) is provided with a discharge hole (7c) on the rear side of the vehicle body, a drain pipe (8) is welded downward to the discharge hole (7c), and the lower part of the drain pipe (8) is connected to the outer panel (1). An exposed portion (8a) extends outward from the vehicle body through the flange portion (lc), which is the joint portion between the lower outer plate (2) and the lower outer plate (2).
The lower part (7b) of the fuel cap adapter (7) is tilted downward in a funnel shape toward the drain pipe (8) to facilitate collection of leaked fuel.

As shown in Figure 3, the arrangement of the drain pipe (8) with respect to the lower outer panel (2) is such that the lower outer panel (2) surrounds the outer periphery of the drain pipe (8). A seal member (9) is installed in the gap to prevent leaked fuel gas discharged from the drain pipe (8) from entering the vehicle body.
), (9) are packed. Furthermore, drain pipe (8)
As shown in Fig. 4, the lower outer plate (2) further down has an outflow groove (2a) that continues from the drain pipe (8) in order to quickly drain the leaked fuel discharged from the drain pipe (8) downward from the vehicle body. is provided.

On the other hand, the area below the inwardly bent part (lb) of the outer panel (1) extending from the top to the bottom of the vehicle body is covered with the rear bumper (3), so that the drain pipe (8) is directed outward from the vehicle body. The exposed portion (8a) and the like are hidden from the outside view of the vehicle body and do not spoil the exterior appearance of the vehicle body.

That is, when the cap (6) of the fuel filler pipe (5) is opened and fuel is supplied to the vehicle body, the fuel that leaks out is transmitted to the outside of the vehicle body through the drain pipe (8) provided in the fuel cap adapter (7). The lower skin (2
) is discarded downward through the outflow groove (2a).

To assemble this drain pipe (8) to the vehicle body, first attach the fuel cap adapter (7) with the drain pipe (8) attached to the bent part (1a) of the outer panel (1), and then This can be done by simply attaching the plate (2), and its attachment is also very easy.

The above can also be achieved simply by disposing the lower part (7b) of the fuel cap adapter (7) on the outside of the vehicle inside the bumper (3) and providing a discharge hole (7c) therein as shown in Fig. 5. Similar effects can be produced.

(Effects of the Invention) As is clear from the above, according to the present invention, the fuel cap adapter disposed inside the outer panel of the vehicle body is provided with a discharge port for leaked fuel, and the discharge path from the discharge port is outside the vehicle body. Since the leaked fuel reaches the inside of the front bumper, the discharge path for the leaked fuel to the outside of the vehicle body is the shortest possible.If this discharge path is constructed with a pipe, etc., this pipe can be shortened, making its handling easier. Assembling becomes easier, and it can help reduce the weight and cost of the vehicle body. Furthermore, since the discharge path is short, clogging is less likely to occur, and cleaning thereof is also easy.

Furthermore, since the leakage part of the exhaust route to the outside of the vehicle is hidden by the bumper of the vehicle body, the appearance of the vehicle body is not impaired.

Also, depending on the structure of the vehicle body outer panel and the fuel cap adapter, the sun exhaust hole of the fuel cap adapter can be placed outside the vehicle body, and the bumper can hide the dripping of fuel from the sun exhaust hole. It is also possible to achieve effects equivalent to or better than those described above.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the rear part of an automobile to which the present invention is applied;
3 is a sectional view taken along line BB in FIG. 2, FIG. 4 is a front view of FIG. 2, and FIG. 5 is a diagram showing another embodiment. FIG. 6 is a diagram showing the prior art. In addition, in the drawing (3) is the fuel bumper, (4) is the fuel filler lid, (5) is the fuel filler pipe, (7)
is the fuel cap adapter, (8) is the drain pipe,
(8a) is an exposed portion. Patent applicant: Agent for Honda Motor Co., Ltd.
Patent Attorney Part 2 1) Part 1 Patent Attorney
Kuni Ohashi, Patent Attorney Ujiko Koyama, Patent Attorney No. 1) Shigeru Figure 2 Figure 1 Figure 3

Claims (1)

[Scope of Claims] An automobile in which a concave fuel cap adapter is attached to a notch in the outer panel of the vehicle body, the fuel cap adapter is covered with a lid that can be opened and closed, and an opening for a fuel filler pipe is disposed inside the lid, The fuel cap adapter is provided with a discharge port for the fuel leaked when fuel is injected into the fuel filler pipe,
A drain structure for a fuel cap adapter for an automobile, characterized in that a portion exposed to the outside of the vehicle in a discharge path of fuel discharged from the discharge port is covered with a bumper.